6533b858fe1ef96bd12b5977

RESEARCH PRODUCT

Cooling of a superconductor by quasiparticle tunneling

Antti ManninenM. M. LeivoJ. K. SuoknuutiJukka P. Pekola

subject

SuperconductivityMaterials scienceFlux pinningFlux pumpingPhysics and Astronomy (miscellaneous)Condensed matter physicsCondensed Matter::SuperconductivityType-I superconductorQuasiparticleSuperconducting magnetic energy storageTechnological applications of superconductivityQuantum tunnelling

description

We have extended the cryogenic cooling method based on tunneling between a superconductor and another metal to the case when both metals are superconducting but when their energy gaps are different; earlier, this method was applied between a superconductor and a normal metal. The electron system of a titanium strip with the superconducting transition temperature Tc2=0.51 K has been cooled from 1.02Tc2 to below 0.7Tc2 by this method, using aluminum as the other superconductor.

yearjournalcountryeditionlanguage
1999-05-17
http://www.scopus.com/inward/record.url?eid=2-s2.0-0005045819&partnerID=MN8TOARS